in the process of creating a trp operon mutant, the region 4 of temp loop 3-4 was accidentally deleted. Which of the following would be a likely observation in the transcription assays? Attinuation is impaired. RNA polymerase cannot bind the the promoter. The operon is perminantly inhibited. Termination would be triggered. The chance of an aptamer bingding to the mRNA 5'-UTR increases.